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zeroRowCol.java
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zeroRowCol.java
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import java.util.Arrays;
public class zeroRowCol {
public static void main(String args[]) {
int arr[][] = {{1,2,3},{3,0,1},{1,1,3}};
zero(arr);
for (int ar[] : arr)
System.out.println(Arrays.toString(ar));
}
public static void zero(int array[][]) {
int rowFlag[] = new int[array.length];
int colFlag[] = new int[array[0].length];
for (int r = 0; r < array.length; r++) {
for (int c = 0; c < array[0].length; c++) {
if (0 == array[r][c]) {
rowFlag[r] = 1;
colFlag[c] = 1;
}
}
}
for (int r = 0; r < array.length; r++) {
if (0 != rowFlag[r]) {
for(int i = 0; i < array[0].length; i++)
array[r][i] = 0;
}
}
for (int c = 0; c < array[0].length; c++) {
if (0 != colFlag[c]) {
for (int j = 0; j < array.length; j++)
array[j][c] = 0;
}
}
return;
}
}